E-commerce Platform Design
Use this template as a starting point for any online store schema. It covers the core transactional structure that most retail systems share.
AI Chart Template
ERD Crow's Foot Template for Database Schema Design
Start with a production-ready entity relationship diagram using crow's foot notation to map your database tables, keys, and relationships clearly.
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ERD Crow's Foot Template for Database Schema Design
Start with a production-ready entity relationship diagram using crow's foot notation to map your database tables, keys, and relationships clearly.
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Template
What This Template Offers
A complete e-commerce database ERD using crow's foot notation, covering customers, orders, products, addresses, and order items with full attribute and key definitions.
- Six fully defined entities: CUSTOMER, ADDRESS, CATEGORY, PRODUCT, ORDER, and ORDER_ITEM
- Primary keys (PK), foreign keys (FK), and unique keys (UK) clearly labeled on every attribute
- Six relationships with crow's foot cardinality symbols (one-to-many, zero-or-more, mandatory)
- Identifying and non-identifying relationship types modeled separately
- Left-to-right layout with zoom and pan enabled for large schemas
Use cases
Perfect Use Cases
Database Architecture Documentation
Share a readable schema diagram with your team or stakeholders without exporting raw SQL. Crow's foot notation communicates cardinality at a glance.
Engineering Interviews and Technical Assessments
Quickly sketch out a normalized relational schema to demonstrate your database design knowledge during system design rounds.
University and Bootcamp Database Courses
Use this diagram as a reference or assignment submission showing proper normalization, key constraints, and entity relationships.
Customize
How to Customize
Add or rename entities
Click 'Add Entity' to introduce new tables, or rename existing ones to match your domain (e.g., rename CUSTOMER to USER or MEMBER).
Edit attributes and key types
Select any attribute row to change its name, data type (INT, VARCHAR, DECIMAL), or key designation (PK, FK, UK) to reflect your actual schema.
Define relationships and cardinality
Add or modify relationships between entities, choosing source and target cardinality (exactly one, zero-or-more, one-or-more) and marking them as identifying or non-identifying.
Key Benefits
- Crow's foot notation is the industry standard for relational database diagrams and is immediately understood by developers and DBAs
- The e-commerce schema covers the most common relational patterns: one-to-many, optional relationships, and bridge/junction tables
- All key types (PK, FK, UK) are pre-labeled so reviewers can assess normalization without reading code
- Export as a high-quality image to include in technical specs, pull requests, or architecture documents
Pro Tips
- Switch the layout direction to 'Top to Bottom' for schemas with deep inheritance chains or hierarchical data models
- Use the alias field to display a friendly label (e.g., 'Order Item') while keeping the technical table name (ORDER_ITEM) in the entity definition
- Add comments on attributes (like 'Price captured at purchase time') to document business rules directly on the diagram
Start now
Create Your Own ERD Diagram
Describe your database schema and get a crow's foot ERD generated instantly - no drawing tools required.
or upload your data file
- Free to start
- No sign-up required
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